Ilya Prigogine once stated that there are certain gasses exhibit an unusual behavior in conditions that are far from equilibrium. Imagine a container with a barrier in the middle, the barrier has a single small hole. Now imagine pouring a blue gas into one side of the container and a red gas into the other. Over time, one might expect that both sides would look more or less purple. But in conditions far from equilibrium, some gasses do something else. At regular intervals, each side will switch from blue to red, and then back again. It’s as though the gas molecules know what the other molecules are going to do, and they all coordinate behavior. Of course, the molecules aren’t conscious.